FD & AP Testing

binocular fusion lock, accommodative control, nonius lines

what is necessary for FD testing?

Wesson FD Card, Sheedy Disparometer, Saladin Card

what are the options for FD testing?

uncrossed, eso

on the Saladin card FD test, if the pt picks a circle where the top line is displaced to the R, this is _____ (uncrossed/crossed) and they have _____ FD

crossed, EXO

on the Saladin card FD test, if the pt picks a circle where the top line is displaced to the L, this is _____ (uncrossed/crossed) and they have _____ FD

larger

the larger the area w/o fusion clues, the _____ the FD

less

the worse the accommodative control, the ____ accurate the test

proximal vergence, vergence adaptation, suppression, peripheral fusion

the magnitude of the FD is influenced by:

associated phoria

measures the prism needed to neutralize a misalignment of the visual axis under binocular conditions

Mallet Unit, Bernell Lantern, American Optical Vectographic chart

what are the distance AP test options?

Mallet Unit, Bernell Lantern, Saladin Card, American Optical Near Vectographic Card, Borish Card

what are the near AP testing options?

presence

the Mallet box can test the _______ (magnitude/presence) of FD

uncrossed, eso

on the Mallet box test, if the pt reports that the top line is displaced to the R, this is _______ (crossed/uncrossed) and they have an ____ FD

crossed, exo

on the Mallet box test, if the pt reports that the top line is displaced to the L, this is _______ (crossed/uncrossed) and they have an ____ FD

R

typically on lateral FD tests, the top line is viewed by the ___ eye

L

typically on lateral FD tests, the bottom line is viewed by the ___ eye

L hyper

on the Mallet box test, if the pt reports that the right line is displaced up, then the pt has a __________ FD

R hyper

on the Mallet box test, if the pt reports that the left line is displaced up, then the pt has a __________ FD

fixation disparity

amount of binocular misalignment when viewing a target

no

does measurement of FD involve prism?

presence, not magnitude

associated phoria tests can detect what about FD?